single-phase 50-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer at the load end of a 2400-volt feeder whose series impedance is 1.0 + j2.0 ohms. The equivalent series impedance of the transformer is 1.0 + j 2.5 ohms referred to the high- voltage (primary) side. The transformer is delivering rated load at 0.8 power factor lagging and at rated secondary voltage. Neglecting the transformer exciting current, determine a. the voltage at the transformer primary terminals, b. the voltage at the sending end of the feeder, and c. the real and reactive power delivered to the sending end of the feeder
Three-Phase Transformers
Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.
Transformer
Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.
A single-phase 50-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down
transformer at the load end of a 2400-volt feeder whose series impedance is 1.0 + j2.0 ohms.
The equivalent series impedance of the transformer is 1.0 + j 2.5 ohms referred to the high- voltage (primary) side. The transformer is delivering rated load at 0.8 power factor lagging and at rated secondary voltage.
Neglecting the transformer exciting current, determine
a. the voltage at the transformer primary terminals,
b. the voltage at the sending end of the feeder, and
c. the real and reactive power delivered to the sending end of the feeder
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